MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links pointing to various domains, many of which appear to be compromised or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://irlanc.ru/uplcv?utm_term=atomic+radius+in+groups+and+periods PDF link annotation
- http://zvezda-rostov.ru/ckfinder/userfiles/files/volulepazizipexijapewo.pdfIn PDF document text
- https://bodykneadstherapy.com.au/ckfinder/userfiles/files/bavaliresuwuri.pdfIn PDF document text
- https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/161321c1e90e96---99870438579.pdfIn PDF document text
- https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16130cbd3824d6---gavokudubozorunafebofo.pdfIn PDF document text
- http://dolinakrzeptowa.pl/public/upload/ckfinder/userfiles/files/92320530568.pdfIn PDF document text
- http://ediljolli.com/userfiles/files/88992003348.pdfIn PDF document text
- https://jensbrode.de/files/file/fogubomatizezixi.pdfIn PDF document text
- http://dailygameresult.com/editor/UserFiles2/files/tobaxukudusazenulavuva.pdfIn PDF document text
- http://cappellastudio.it/userfiles/files/42162419977.pdfIn PDF document text
- http://canavesiobruno-architetti.it/userfiles/files/23285149745.pdfIn PDF document text
- http://kbchina.de/upload/meramuzom.pdfIn PDF document text
- http://denki-shonan.com/uploadsfile/kituvixezedugoxaxu.pdfIn PDF document text
- http://nhatrangpalacehotel.com/app/webroot/upload/files/76072117827.pdfIn PDF document text
- http://agrostroi-proekt.ru/ckfinder/userfiles/files/87069983488.pdfIn PDF document text
- http://dienvietbac.com/uploads/files/popuzovekemajawodatekow.pdfIn PDF document text
- http://silarperu.com/UserFiles/file/lazagefojejojerobafonij.pdfIn PDF document text
- https://readandenjoy.ae/userfiles/files/xuwikasodisimakisenad.pdfIn PDF document text
- http://self119.net/upload/userfiles/2021/09/files/210905072444.pdfIn PDF document text
- http://roomyab.ir/basefile/roomyabir/files/2267350820.pdfIn PDF document text
- https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/33edf77969edb26a14ee5ed658b6db52/57615826115.pdfIn PDF document text
- http://tomaszskiba.com/userfiles/file/43556955591.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e419.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE419 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fc30.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC30 | 10892 bytes |
SHA-256: 87aae3f308b303a07f2cf2cda745b6f76eab36be973bdb6467a86ecb79d63bed |
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font_02_sfnt_off00011531.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11531 | 17984 bytes |
SHA-256: 7065ea73f4e9c800382e5a883bbd954874364686e26dcbfefb4bdee435d56949 |
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